Require Spaces Around Infix Operators (space-infix-ops)

While formatting preferences are very personal, a number of style guides require spaces around operators, such as:

varsum=1+2;

The proponents of these extra spaces believe it make the code easier to read and can more easily highlight potential errors, such as:

varsum=i+++2;

While this is valid JavaScript syntax, it is hard to determine what the author intended.

Fixable: This rule is automatically fixable using the --fix flag on the command line.

Rule Details

This rule is aimed at ensuring there are spaces around infix operators.

Options

This rule accepts a single options argument with the following defaults:

"space-infix-ops":[2,{"int32Hint":false}]

int32Hint

Set the int32Hint option to true (default is false) to allow write a|0 without space.

varfoo=bar|0;// `foo` is forced to be signed 32 bit integer

The following patterns are considered problems:

/*eslint space-infix-ops: 2*//*eslint-env es6*/a+b/*error Infix operators must be spaced.*/a+b/*error Infix operators must be spaced.*/a+b/*error Infix operators must be spaced.*/a?b:c/*error Infix operators must be spaced.*/consta={b:1};/*error Infix operators must be spaced.*/var{a=0}=bar;/*error Infix operators must be spaced.*/functionfoo(a=0){}/*error Infix operators must be spaced.*/